Reverberatory furnace



Nov. "29, 1927.

G. W. PRINCE REVERBERATORY FURNACE Filed July23. 1926 RgToRNEYs ill:

t ft

llflhll t'ihlUBG-E W. PRINCEQOF OLEMIENCEA'U, ARIZONA, ASSTLGN'OR T UNITED VERDE ELKEIEIF- SIGN MINING COMPANY, OF NEW YOBK,

N. '55., A. CORPORATION 0T3 DELA'WARE.

BEVERBEBATOEY FURNACE.

.llpplication filed July 23,

The object ct my inyentionis to eiiectw ally protect the side walls of the furnace chamber from the deleterious action of the smelting ore and the extreme heat generated in the furnace chamber by supplying the tettling or other protective material, such ES siliceous ore to the sides of tho'turnace hainber from means such as fluid pressure "Il1'lS located in the firing end wall of the turnace chamber, said means being prefer ably regulable both as to pressure and direction so that the material can be supplied in the desired quantities and at the desired points along the said side walls of the'turnace chamber where the material will etlectually protect the side walls. Some of the advantages to be obtained are :'lhe ability regulate the amount of tettling material supplied to the side walls by varying the fluid pressure; he ability to supply the :f ttling material to the desired points along the side walls by changing the direction of the incoming material, the great saving in the expense of protecting the side walls by the elimination of specialtype oi bricks and the great increase in the lite ot' the furnace and the saving in the expense of mainte-. nance of the furnace, by eliminating the lettling holes through the side walls and arch ot' the furnace, which holes materially weaken the furnace structure.

Another advantage is the ability to'use increased quantities of siliceous ores as the tettling material, becausel can carry ahigher percentage of silica in the charge, to economically produce a more siliceous than where the same amount oi siliceous ores is added directly to the charge.

in the accompanying drawings:

llig. i represents a longitudinal vertical section taken through a reverberatory turnace embodying the means for carrying out my invention, the section being taken in the plane of the line l-I otl ig. 3, looking in the direction or the arrows. 1 r

Fig. 2 represents a similar sect-ion taken in the plane of the line ll-ll of Fig. 3, looking in the direction of the arrows.

3 represents on an enlarged scale a sverse vertical section through the rut.

1925. Serial nu. 1:24.457.

nace, taken in the plane of the line lll-lll of Fig. 1, looking in the direction of the arrows. V

i represents a detail longitudinal horizontal section taken in the plane of the line lv lv of Fig. 3.

Fig. 5 represents a side View ot' the gun for blowing the fettling material into the furnace chamber and along the side walls thereof, from the firing end wall of the furnace chamber.

Fig. 6 represents an end View of the gun.

Fig; 7 represents a top plan View of the gun.

The arch ofthe reverberatory furnace is denoted by 1, the bottom by 2, the sidewalls by 3, 3, the firing end wall by i and the flue end wall by 5. This furnace may be provided at its firing end with the usual nozzles 6 for the introduction of the heating medium and at its other end with the usual flue or uptake 7. v p i In the present instance where two longb tudinal' mounds of smelting ore are to be formed and maintained on the floor of. the

furnace chamber, the arch 1 is provided with two longitudinal rows of closely spaced passages 8, the rows being spaced about equally distant -trom each other and from the side walls, through which passages J the smelting ores are fed in -troni hoppers 9 communicating with any suitable feeding mechanism (not shown herein) in such a manner that longitudinal mounds of smelting ores are formed and maintained with the apices of the niounds spaced from each other and from the side wallsof the furnace chainber. i

The refractory or tettling material as, for instance, siliceous ore, is supplied to the spaces between the mounds of smelting ore and the side walls of the furnace chamber to protect the side walls from the deleterious action of the smelting'ores and the intense heat in the i'urnacechamber.

The means which I have shown for supplying the tettling lnaterialcoinprises fluid pressure guns located in the firing end wall of the furnace chamber adjacent the side walls of the said chamber. Each gun is shown as comprising a hopper 10 for receiving the fettling material, which hopper communicates with an L-coupling 11 provided with a horizontally arranged barrel 12 which projects through the firing end wall 1 adjacent one of the side walls 3. A fluid pressure supply nozzle 13 is located within the coupling 11 so as to blow the fettling material fed from the hopper 1O outwardly through the barrel 1) into the space between the mound of smelting ore and its adjusting ide wall 3 of the furnace. A valve-1 f i located in the fluid pressure line 15 for regulating the amount of fettling material blown from the gun by varying the fluid pressure. Furthermore, the fettling material blown from the gun may be directed to the desired points along the side wall by changing the position of the gun to the required adjustment.

From the above description it will be seen that the guns are regulable both as to pressure and direction, so that the fettling material may be supplied in the desired quantities and at the desired points along the side walls of the furnace chamber. By locating the guns in the firing end wall of the furnace chamber, I am enabled to eliminate the usual holes in the side walls of the furnace chamber and in the arch, which holes not only materially weaken the structure of the furnace but also shorten its eflective life. By this arrangement I am also enabled to eliminate the necessity of providing special heat resisting bricks which are very expensive.

Furthermore, by this invention I am enabled to use increased quantities of siliceous ores where siliceous ores are used as the fettling material, as it is possible to carry a higher percentage of silica in the total charge and to economically produce a more siliceous slag by my method than where the same amount of siliceous ore is added directly to the charge, thereby obtaining a material saving in the costof the flux.

Furthermore, it will be seen that there will be a material saving in the cost of operation.

Also by the use of fluid pressure devices located at the firing end of the furnace chamher for placing the fett-ling material along the side walls of the chamber, the smelting ore may be fed through the arch at a distance from its side walls, thereby forming longitudinal mounds spaced from the side walls whereby the smelting of the ore is greatly expedited because of the greater area of the ore being exposed to the heating medium.

Furthermore, the placing of the smelting ore and fettling material in the furnace chamber as herein described causes a uniform wearing effect on the arch as distinguished from those furnaces where the charge is fed into the furnace chamber adjacent its side walls and remains along the same.

What I claim is 1. In a reverberatory furnace, means located at the firing end wall of the furnace in position to supply fcttling material to the side walls of the furnace chamber, to protect the side walls from the action of the smelting ore and the intense heat. in the furnace chamber.

2. In a reverberatory furnace, means for supplying fettling material to the side walls of the furnace chamber from the firing end wall thereof, to protect the side walls from the action of the smelting ore and the intense heat in the furnace chamber and means for1 regulating the supply of fettling materia 3. In a reverberatory furnace, means for supplying fettling material along the side walls of the furnace chamber from the firing end wall thereof, to protect the side walls from the action of the smelting ore and the intense heat in the furnace chamber and means for directing the fettling material to predetermined points along the side walls of the furnace chamber.

4-. In a reverberatory furnace, means for supplying fettling material along the side walls of the furnac chamber from the firing end wall thereof, to protect the side walls from the action of the smelting ore and the intense heat in the furnace chamber, means for regulating the supply of fettling material and means for directing the fettling material to predetermined points along the side walls of the furnace chamber.

5. In a reverberatory furnace, fluid pressure actuated devices located in the firing end wall of the furnace chamber arranged to blow fettling material against the side walls thereof, to protect the side walls from the action of the smelting ore and. the intense heat in the furnace chamber.

6. In a reverberatory furnace, fluid pressure actuated devices located in the firing end wall of the furnace chamber arranged to blow fcttling material against the side walls thereof, to protect the side walls from the action of the smelting ore and the intense heat in the furnace chamber and means for adjusting said fluid pressure actuated devices, for directing the fettling material to predetermined points along the side walls of the furnace chamber.

7. In a reverberatory furnace, fluid pressure actuated devices located in the firing end wall of the furnace chamber arranged to blow fettling material against the side walls thereof, to protect the side walls from the action of the smelting ore and the intense heat in the furnace chamber and means for regulating the supply of fettling material.

8. In a reverberatory furnace, fluid pressure actuated devices located in the firing end Wall of the furnace chamber arranged to blow fettling material against the side walls thereof, to protect theside Walls from the action of the smelting ore and the intense heat in the furnace chamber, means for ad )usting said fluid pressure actuated devices, for directing the fettling material to predetermined points along the side wallsof the furnace chamber and means for regulating 1 the supply of fettling material.

In testimony, that I claim the foregoing as my invention, 1 have signed my name this 14 day of July, 1926.

GEORGE W. PRINCE. 

